Creating Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a type of graph that shows the relationship between two variables by displaying data points on a two-dimensional grid.

Front

What does the x-axis represent in a scatter plot?

Back

The x-axis typically represents the independent variable, which is the variable that is manipulated or changed.

Front

What does the y-axis represent in a scatter plot?

Back

The y-axis typically represents the dependent variable, which is the variable that is measured or observed.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, used to make predictions.

Front

How can you determine the correlation from a scatter plot?

Back

You can determine the correlation by observing the direction and pattern of the data points: positive correlation (upward trend), negative correlation (downward trend), or no correlation (no clear trend).

Front

What does a positive correlation indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also increases.

Front

What does a negative correlation indicate?

Back

A negative correlation indicates that as one variable increases, the other variable decreases.

Front

What is the purpose of using a trend line in a scatter plot?

Back

The purpose of a trend line is to summarize the relationship between the variables and to help make predictions.

Front

How do you use a scatter plot to make predictions?

Back

You can use a scatter plot to make predictions by extending the trend line to estimate values for the dependent variable based on the independent variable.

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are data points that differ significantly from other observations and can affect the overall trend and predictions.